Andrew Wong updated KUDU-2117:
    Issue Type: Improvement  (was: Bug)

> Spread metadata across multiple data directories
> ------------------------------------------------
>                 Key: KUDU-2117
>                 URL: https://issues.apache.org/jira/browse/KUDU-2117
>             Project: Kudu
>          Issue Type: Improvement
>          Components: fs, tablet, tserver
>    Affects Versions: 1.6.0
>            Reporter: Andrew Wong
>            Assignee: Andrew Wong
>            Priority: Major
> Tablet metadata and consensus metadata are placed in the first configured 
> data directory. This is an issue, as every write to these metadata incurs an 
> fsync and this stresses the first disk considerably more than the others
> One way around this is to spread metadata across multiple data directories. A 
> natural choice would be to place them in a directory within the tablet's disk 
> group. In this way, the data/metadata can be completely localized to the disk 
> group, which has the added benefit of making the risk of disk failures easier 
> to assess per tablet.

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